Chatbots are a segment of application of NLP that deals specifically with conversational interfaces. These interfaces can also expand their work to handle rudimentary commands and actions and are, in these cases, termed voice-based virtual assistants. Voice-based virtual assistants have been on the rise recently with the introduction of dedicated devices such as Google Home and Alexa by Amazon.
Chatbots can exist in multiple forms. They don't need to only be present as virtual assistants. You could talk to a chatbot in a game, where it tries to draw a storyline in a certain direction, or you could interact with the social chatbots that some companies use to reply to their customers on social media platforms, such as Twitter or Facebook. Chatbots can be considered a move over Interactive Voice Response (IVR) systems, with their added intelligence...
